package com.dljd.javase.t10.map;

import java.util.Properties;

public class PropertiesDemo {

    public static void main(String[] args) {
        Properties  pro=new Properties();
        pro.put("databaseName","user");
        pro.put("username","root");
        pro.put("password","root");
        pro.put("databaseName","user");
        pro.get("databaseName");
    }
}
